Introduction to General Facts
The Present Simple is used to express facts, universal truths, and scientific facts that are always true. For example: 'The Earth revolves around the Sun', 'Lions eat meat', and 'Ice melts at 0 degrees Celsius'.
Scientific and Natural Facts
We use Present Simple for scientific facts and natural laws, e.g., 'Water boils at 100°C'. This shows how permanent, unchanging facts are expressed. Other natural facts include: 'Plants need sunlight to grow', 'Magnets attract metal'.
General Knowledge and Common Truth
Present Simple expresses widely accepted truths about the world, e.g., 'Dogs have four legs'. Unlike the habits we learned about earlier, these statements are always true and don't depend on specific times or routines.
Mathematical and Technical Facts
Mathematical facts also use Present Simple: 'Two plus two equals four', 'A triangle has three sides'. These statements represent permanent, unchangeable truths.
Examples
The sun rises in the east and sets in the west.Natural phenomenon that always occurs – universal truth
Penguins live in Antarctica.General fact about animal habitat
Sugar dissolves in water.Scientific fact about physical properties
Common Mistakes to Avoid
❌ Incorrect: The sun is rising in the east every day.
✅ Correct: The sun rises in the east every day.
Explanation: For universal truths, use simple present, not present continuous
❌ Incorrect: Cats are sleeping 16 hours a day.
✅ Correct: Cats sleep 16 hours a day.
Explanation: General facts use simple present, not continuous form
Tips for Success
- If the fact is always true and never changes, use Present Simple
- Scientific facts always use Present Simple, even when describing processes
- Don't use time expressions like 'usually' or 'sometimes' with universal truths
Learning Path Notes
Key Concepts in This Series:
- Builds on basic Present Simple structure
- Contrasts with habits and routines from previous page
- Prepares for more complex uses of Present Simple